The observation of neutrino oscillations - and hence neutrino mass - by the Super-Kamiokande experiment last year was one of the major physics discoveries of the 1990s. However, a team of US scientists is now proposing that the results can be explained by a new phenomenon - neutrino decay. Their model can, they claim, account for all neutrino anomalies with just three flavours of neutrino and is consistent with all experimental results to date. The decay model also implies neutrino mass (Phys. Rev. Lett. 82 2640).
Neutrinos may decay
01 Apr 1999